资源简介

(共44张PPT)
1. This illness causes severe diarrhoea, dehydration, and even death.
severe adj. extremely bad or serious 极为恶劣的; 十分严重的
not kind or showing sympathy; not smiling or showing approval 严厉的
e.g. His injuries are severe.
The courts are becoming more severe on young offenders.
She was a severe woman who seldom smiled.
【常用搭配】
be severe on/with 对……严厉
be severe with oneself 严于律己
severely adv. 严重地; 严格地，严厉地
【语境应用】单句语法填空。
1) I do not like to be severe _________ anyone, but our own situation is serious.
2) You should first of all be severe _________ yourself and set an example to your kids.
3) A fire had _________ (severe) damaged the warehouse.
on
with
severely
2. In the early 19th century, when an outbreak of cholera hit Europe, millions of people died from the disease.
die from: die owing to 死于
die away (声音、风或光) 逐渐消失
die down 逐渐变弱；逐渐平息
die of 因……而死
die out 灭绝；消失
by dying for/ to do sth. 渴望得到某物/ 做某事
die of, die from
词条 相同点 含义 例子
die of “死于疾病”既可用die of, 也可用die from表示。 死于(疾病、过度悲伤等内部原因) die of illness/ hunger/ starvation/ cold, etc
die from 死于(某种外部原因) die from an earthquake/ a traffic accident/ drinking, etc.
【语境应用】完成句子。
In 2020, many species of animals ____________ (死于) the forest fire in Australia.
2) It is well known that smoking does harm to health. A lot of people ____________ (死于) lung cancer and heart disease due to smoking.
died from
die of
3. In general, doctors in those days had two contradictory theories to explain how cholera spread.
contradictory adj. containing or showing a contradiction
互相矛盾的；对立的；不一致的
【常用搭配】
be contradictory to… 与……矛盾、相反
e.g. His remark was contradictory to the truth.
contradict v. 反驳; 与……相矛盾
contradiction n. 抵触; 矛盾; 矛盾的说法
Don’t contradict! 别顶嘴
in direct contradiction to 与……恰恰相反
【语境应用】完成句子。
But the information I got was rich and varied, or even _____________. 但我得到的信息丰富多样，甚至相互矛盾。
2) People found this sort of ____________ (contradict) reality to accept. 人们觉得这矛盾的现实难以接受。
3) He kept ___________________ when we were arguing ― I think he was a bit confused. 当我们争论的时候他为断自相矛盾―我认为他有点困惑了。
4) Your attitude is in contradiction __________ your character.你的态度和你的性格相矛盾。
contradictory
contradictory
contradicting himself
to
4. Snow subscribed to the second theory.
subscribe v. to apply to buy shares in a company认购(股份)
to pay an amount of money regularly in order to receive or use something 定期订购
to pay money regularly to be a member of an organization or to support a charity 定期缴纳(会费)
e.g. Each employee may subscribe for up to￡2,000 worth of shares.
You can subscribe to the magazine for as little as $32 a year.
She subscribes to an environmental action group.
subscriber n. 订阅人；定期捐款者；消费者
a subscriber to… ……的订阅者
subscription n. 订阅；订阅费；定期捐款
【常用搭配】
subscribe to 订阅(报纸、杂志等)；签字认可，同意；向……捐赠
subscribe for 预订；认购
【语境应用】单句语法填空。
1) She used to subscribe ___________ an environmental action group.
2) Have you handed in your ___________ (subscribe)
3) Write away now for the free album offered to every new ___________ (subscribe).
to
subscription
subscriber
5. Snow suspected that the water pump was to blame.
suspect v. to have an idea that something is probably true or likely to happen, especially something bad, but without having definite proof 疑有
to have an idea that sb. is guilty of sth., without having definite proof 怀疑
to feel that something is not completely right, legal or honest, without having any proof; to not trust something 不信任
【常用搭配】
suspect…of… 怀疑……有罪
suspect… to be/ as 怀疑……是……
e.g. I have no reason to suspect her honesty.
The police suspect him of having taken the money.
I suspected him to be a liar.
n. a person who is suspected of a crime or of having done something wrong 犯罪嫌疑人；可疑对象
e.g. He is the prime suspect in the case.
suspicion n. 怀疑
suspicious adj. 感觉可疑的
常用“vt.+ sb. + of sth.”短语
warn sb. of sth. 警告某人某事
accuse sb. of sth. 控告某人某事
cure sb. of sth. 给某人治愈某病；改正(某人的不良行为)
inform sb. of sth. 告知某人某事
convince sb. of sth. 使某人相信某事
remind sb. of sth. 使某人回想起某事
【语境应用】单句语法填空。
1) Some people suspected him _________ theft.
2) The police suspected the designer _________ (be) the murderer.
3) Two _________ (suspect) in connection with the killing are now being questioned.
4) They suspected me of _________ (have) something to do with the affair.
5) you’ll need to convince them _________ the convenience of using credit cards to buy things.
of
to be
having
suspects
of
blame v. to think or say that somebody/something is responsible for something bad 把……归咎于；责怪；指责
n. responsibility for doing something badly or wrongly; saying that somebody is responsible for something
责备; 指责
(1) blame sb. for (doing) sth. 因(做)某事而责备某人
blame sth. on sb. 把某事归咎于某人
be to blame (for sth.) (对某事)负有责任
be to blame for 应承担……的责任；因……该受责备
(2) accept/ bear/ take blame for 对某事负责；承担责任
put/ lay the blame for sth. on sb. 把某事的责任推到某人身上
【常用搭配】
e.g. Marie still blames herself for Patrick's death.
You can't blame all your problems on your family.
Officials believe that more than one person may be to blame for the fire.
The police laid / put the blame for the accident on the driver.
The company is ready to bear / take / accept / get the blame for what has happened.
【语境应用】单句语法填空。
1) She doesn’t blame anyone _________ her father’s death.
2) The narrator was _________ (blame) for the misunderstanding.
3) We were ready to take the blame _________ what had happened.
4) They think the blame should be placed _________ the conductor.
for
to blame
for
on
was to blame 不定式的主动形式表示被动的含义
(1) n.+ be+ adj.+to do
这个结构中常用表特征或性质的形容词，如difficult, hard, easy, comfortable, pleasant, interesting, exciting等。句子的主语与不定式是被动关系，形容词表示主语的特征或性质，用不定式的主动形式表被动意义。
e.g. The question was very difficult to answer.
(2) n.+ be+ too + adj. + to do
e.g. The thing is too small to see.
(3) n. + be + adj. + enough to do
e.g. The box is light enough to carry.
【语境应用】完成句子。
1) The expert said that the polluted air _____________ for this disease. 这位专家说污染的空气是这种疾病的罪魁祸首。
2) Modern methods of/ for tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___________ (perform) consistently over a large area. 自20世纪80年代中期以来，才采用追踪北极熊种群的现代方法，而且在一个大区域内持续进行，花费是巨大的。
3) today’s homework was easy ________ (do), so Mike finished it quickly and went out to play. 今天的家庭作业很容易做，所以迈克很快就做完了，然后出去玩了。
was to blame
to perform
to do
6. Accordingly, he had the handle of the pump removed so that it could not be used.
handle n. the part of a door, window, etc. that you use to open it 把手；拉手
the part of an object that you use for holding it 柄
e.g. turn the handle
the handle of a knife
v. to deal with a situation, a person, an area of work or a strong emotion 处理, 应付(局势、人、工作或感情)
to touch, hold or move sth. with your hands 触, 拿, 搬动
to control a vehicle, an animal, a tool, etc 控制, 操纵(车辆、动物、工具等)
e.g. She’s very good at handling her patients.
Wear rubber gloves when handling cat litter.
I wasn’t sure if I could handle such a powerful car.
handle sth. well / perfectly / badly/ poorly
处理某事好/完美/不好/很差
handle a problem 处理问题
handle difficult customers 应付难对付的顾客
handle the situation well 很好地应对局势
【常用搭配】
【语境应用】完成句子。
1) The public never had faith in his ability __________ (handle) the job. 公众从来不相信他有能力胜任这一职位。
2) We got into trouble because none of us knew how __________ (handle) the machine. 我们遇到了麻烦，因为我们都不知道如何操作这台机器。
3) ___________________ (转动把手) and you will open the safe.
to handle
to handle
Turn the handle
have sth. done 使某事被……(可能是主语自己做，也可能是让别人做); (主语)遭遇/ 经历某种不幸的事
have sth. done 结构中，过去分词作宾补。用过去分词作宾补表示被动或动作已经完成。
have sth. done 可表四种不同的意义：
(1) (主语) 请/ 派别人完成某事；
(2) (主语) 完成某事(可能参与)；
(3) (主语) 遭受某种不幸的情况；
(4) 用于否定句中，表示“不允许……”“不让”
have sb. to sth.= get sb. to do sth. 使某人去做某事
have sb. doing sth. 使某人做某事(动作延续)
【语境应用】完成句子。
I need a new passport so I will have to have my photograph __________(take).
我需要一个新护照，所以我得去让人给我照相。
2) You’d better have the old furniture __________ (remove) out of the room.
你最好找人把这些旧家具从房间里搬出去。
taken
removed
7. Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London.
link n. a connection between two or more people or things 联系
a relationship between two or more people, countries or organizations 纽带
e.g. Is there a link between smoking and the disease
Each link that makes up a chain is equally important.
link v. to make a physical or electronic connection between one object, machine, place, etc. and another
把……连接起来
to links two things, facts or situations, or they are
linked, they are connected in some way 相关联
【常用搭配】
link… to… 与……连接；联系
link…with… 将……和……连接(系)在一起
e.g. The new bridge will link the island to the mainland.
I have heard his name linked with that of a well-known person.
【语境应用】 单句语法填空。
1) Regular air traffic links the city _________ the rest of the country.
2) High unemployment is not necessarily linked _________ the rise in prices.
3) There are a lot of wireless _________ (link) in a radio.
4) The television camera _________ (link) to a computer.
to
with
links
is linked
8. Through Snow’s tireless efforts, water companies began to sell clean water, and the threat of cholera around the world saw a substantial decrease.
decrease v. to become smaller in size, number, etc.; to make something smaller in size, number, etc.
(使大小、数量等)减少；减小；降低
【常用搭配】
decrease (from…) to… 减少到……
decrease by … 减少了……(表示减少的量)
decease in … 在……方面减少
n. the process of reducing something; the amount that something is reduced by 减少; 降低；减少量
【常用搭配】
a decrease in… ……的减少
on the decrease 在减少
e.g. The number of new students decreased from 210 to 160 this year.
Average house prices decreased by 13% last year.
This species of bird is decreasing in numbers every year.
【语境应用】单句语法填空。
1) The number of students in each class is _________ the decrease.
2) The decrease _________ sales was almost 20 percent.
3) The production of wheat has decreased _________ 20% because of the dry weather.
4) The latest warm period has caused the number of glaciers to decrease _________ 150 in 1850 to 26 today.
on
in
by
from
9. fortunately, we now know how to prevent cholera, thanks to the work of John Snow.
thanks to with the help of; because of 幸亏，由于
e.g. Thanks to your help, we succeeded．
It was all a great success — thanks to a lot of hard work.
thanks to, owing to, due to, because of
词条 用法 常作成分
thanks to “多亏”，多放在句首，用来表达正面意思 (接近于原意 “感谢”)，偶用于讽刺口吻。 作状语
owing to “由于、因为”，可置于句首或句末。 常作状语、表语
due to 表示原因，可与owing to 互换 常作表语、状语或定语
because of 着重某个结果的原因 常作状语
【语境应用】辨析填空：thanks to/ due to/ because of /owing to
1) He was out of work _________________________ a physical injury.
2) Most of the problems were _________________________ human error.
3) _____________________________ your help, I got the position advertised in the newspaper.
4) The town was cut off from the rest of the world _________________________ heavy snow.
due to/owing to/because of
due to/owing to
Thanks to/Owing to/Because of
due to/owing to
10. moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases.
1) transform vt. to change the form of something; to change in form 使改变形态
to completely change in appearance or character 使改观
【常用搭配】
transform … (from…) into … 把……变成……
transform … with … 用……来改变……
e.g. This equipment can transform light into energy.
We can transform the world with our knowledge.
transformation n. 改变、转化(不可数); 具体变化(可数)
transformable adj. 可变形的；可变化的
transformer n. 促使改变的人或物；变压器
transform vi. to change them completely and suddenly so that they are much better or more attractive 改变；转变
e.g. The sofa can transform for use as a bed.
【语境应用】完成句子。
1) They successfully ______________________________ (把这家公司变成) a global one.
2) The art gallery ___________________________ (由……改造而成) an old railway station.
3) It's said that the shape of such a toy ___________________ (是可变形的).
4) His attitude to life has gone through a(n) _____________ (改变).
transformation
is transformable
transformed the company into
was transformed from
2) the way+定语从句
way作“方式，方法”讲，后接定语从句。
关系词在从句中作状语时，关系词用that, in which或省略。
e.g. The way (that/ in which) he did it attracted me.
关系词在从句中作主语或宾语时，关系词用that或which (作宾语时关系词可省略)。
e.g. I did it in the way (that/ which) you told me.
【语境应用】单句语法填空。
1) What surprised me was not what he said but the way _____________________ he said it.
2) No one will support the way _____________________ he mentioned at the meeting.
3) Is this the way _____________________ was against by many people
in which / that / 省略
that/which/省略
which / that(共48张PPT)
Unit 1
Unit 1
SCIENCE AND SCIENTISTS
To get information about how John Snow defeated cholera.
To summarize stages of scientific research.
To talk about the significance and contribution of John’s work.
To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advance in science.
― Albert Einstein & Leopold Infeld
提出新的问题，发现新的可能，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。
―阿尔伯特 爱因斯坦
利奥波德 英费尔德
What qualities did Einstein and Infeld think a scientist should have
Imagination, creativity, raising questions and new possibilities, and looking at old problems from a new angle.
1. How would you describe the photo
Two young girl students are conducting an experiment in a school science laboratory, probably to test a theory, verify results, collect data, or develop skills needed in scientific research.
Look at the picture and answer the questions.
2. What scientific equipment can you see in a science laboratory
Safety goggles 防护眼镜，glass rod 玻璃棒，beaker 烧杯，gauze mat 石棉网，tripod 三脚架，Bunsen burner 本生灯，stand 托架，flask 烧瓶，test tube 试管，test tube rack 试管架，etc.
3. what qualities do you need to be a scientist
Hard work, courage in face of challenges, persistence, devotion, passion, patience, creativity, etc.
4. Where do you think this photo was taken What are the students doing in the photo
5. Have you ever been to a place like this What was it like
I think it was taken in a chemistry laboratory at school. They look like they are conducting an experiment.
Yes, I have. I have conducted chemistry experiments in the laboratory at my school. There are lots of beakers, Petri dishes, and other tools and equipment there. We are set in teams and work together to complete experiments at various workstations.
6. Would you like to work in such a filed in the future Why or why not
Yes. I think it would be very exciting! I am already very interested in chemistry.
What is cholera
Cholera is an infectious disease that causes severe watery diarrhea (腹泻), which can lead to dehydration (脱水) and even death if untreated. It is caused by eating food or drinking water containing a bacterium called Vibrio cholera. The disease is most common in places with poor sanitation (卫生设施), crowding and mon locations include parts of Africa, south Asia, and Latin America.
n. 霍乱
Here are some facts about cholera. Try to present them to your partners and consider whether they are the same as you expected.
1. Cholera can kill sufferers within a few hours if they are left untreated.
2. Researchers have estimated that each year there are 1.3 million to 4 million cases of cholera, and 21, 000 to 143, 000 deaths worldwide due to cholera.
3. Up to 80% of cases can be successfully treated with oral rehydration solution (口服补液).
4. Safe water and waste control can prevent cholera.
5. When there is an outbreak of cholera, it is important to focus on treatment and waste control.
6. Safe and effective cholera vaccines (疫苗) are now used to control the disease.
7. Today, no country requires proof of cholera vaccination as a condition for entry.
______ analyse the results
______ ask a question
______ draw a conclusion
______ collect data
______ find a problem
______ find supporting evidence
______ think of a method
Discuss the following stages of scientific research in groups. What order would you put them in
=What does the evidence tell me
=Could this problem be cause by…
=What is the answer to my question
=How can I find the answer
JOHN SNOW DEFEATS “KING CHOLERA”
Who was John Snow
What is King Cholera
What did John Snow do about King Cholera
Who
How
What
How do you think John Snow defeated King Cholera
Why is it called King Cholera
What harm does cholera do to people
What is the influence of John Snow’s study on science
Now, let's read the passage to get information about the infectious disease.
JOHN SNOW DEFEATS “KING CHOLERA”
Skim the passage to see if the order you decided in Activity 1 was correct.
Order Stage Key words or sentences
1 Find a problem two contradictory theories
2 Ask a question in two particular streets the cholera outbreak was so severe… find out why
3 Think of a method marking on a map
4 Collect data house numbers 16, 37, 38, and 40;
20 and 21 Broad Street; 8 and 9 Cambridge Street
5 Analyse the results multiple deaths near the water pump;
some households had no deaths
6 Find supporting evidence a woman and her daughter had died; the woman liked the water… she had it delivered to her house
7 Draw a conclusion As a result of this evidence, John Snow was able to announce that the pump water carried cholera germs.
______ analyse the results
______ ask a question
______ draw a conclusion
______ collect data
______ find a problem
______ find supporting evidence
______ think of a method
5
2
7
4
1
6
3
=What does the evidence tell me
=Could this problem be cause by…
=What is the answer to my question
=How can I find the answer
John Snow was a well-known doctor in London.
The cause of Cholera was polluted water.
The source of all drinking water should be examined.
How John Snow collected, analysed data and found the cause of the disease and defeated it .
Choose the main idea of the passage.
Paragraph(s) Main idea
Skim the passage and use key words to describe each part.
1
2-3
4
5
What Who
How
The truth
Results and significance
cholera
John Snow
What It is one of ___________________________________
because it causes ______________________________
_________________
When _________________________.
Where __________________________.
What consequence __________________________________.
the most feared diseases in the world
severe diarrhoea, dehydration,
and even death
In the early 19th century
Europe
Millions of people died from the disease
Who A _____________ doctor who even attended to
_______________ when she gave birth.
What He had a desire to ________________ once and for all.
young British
Queen Victoria
destroy cholera
Read para. 1 and fill in the blanks below.
1. What kind of map is it
__________________________
2. What does “―” mean
__________________________
3. What does “PH” mean
__________________________
4. What does 30, 31, … refer to
__________________________
__________________________
Look at the picture and answer the questions.
Its’ Snow’s cholera map.
“―” means 1 death.
“PH” means Public house.
30, 31, … refers to numbers of houses.
5. How many deaths were there in house number 19 in Broad Street
______________________________
______________________________
6. Which house numbers had more than four deaths in Broad Street
______________________________
______________________________
There were 2 deaths in house number 19 in Broad Street.
16， 37， 38 and 40 had more than four deaths in Broad Street.
7. Which house numbers had no deaths in Broad Street
________________________________
________________________________
8. Where is the pump
________________________________
________________________________
14, 20, 21, 25, 27, 28 and 34 had no deaths in Broad Street.
Pump is near house number 40 in Broad Street.
multiple deaths
happened here.
No death happened here.
The water from the pump
was to blame.
Public house
Clue: free beer from public house
Result:
The water came from the river which had been polluted by the dirty water from London.
Read paras. 2-3 and complete the chart below.
It was believed that cholera was caused by bad ______ or germs in ____________.
Snow ____________ the places where the people who _______ had lived.
Many deaths occurred near the ___________ in Broad Street.
Some people ________ drunk the water from the pump, and lived.
A woman and her daughter died in another part of London after _______
___________________.
The pump water carried ____________.
The ________ of the pump was removed.
air
food or water
marked on a map
died
water pump
hadn’t
drinking
cholera germs
handle
A.
C.
B.
D.
E.
water from the pump
Match the following headers with the letters from the chart above. Write A-E in the blanks.
1. conclusion ______
2. evidence ______
3. process ______
4. solution ______
5. theories ______
D
C
B
E
A
Read paras. 4-5 and answer the questions.
1. What caused the outbreak of cholera in London in 1854
____________________________________________________
____________________________________________________
2. Was cholera destroyed completely
____________________________________________________
3. How can we prevent cholera
____________________________________________________
The water which came from the River Thames and had been infected by waste.
No.
By drinking pure or boiled water, and eating clean food.
4. What contributions did John Snow make to science
____________________________________________________
____________________________________________________
____________________________________________________
He helped people know how to prevent cholera. He transformed the way scientists study diseases by using maps and statistics.
1. What are the results of Snow’s tireless efforts
2. What is the significance of Snow’s effort in making a research
to cholera Give your idea.
Read Para. 5 and discuss the questions.
To the world:
To yourself:
1. how to prevent cholera;
2. transformed the way scientists study diseases.
1. his spirits in making research;
2. his attitude to work.
the father of modern epidemiology
现代流行病学之父
The story of Cholera
Write out the questions according to the answers
1. Q: What _________________________________
A: Snow thought that cholera was caused by germs in food or water.
2. Q: Why __________________________________________
A: Snow had the handle of the pump removed so that it could not be used.
3. Q: How _______________________________
A: The cholera threat was defeated thanks to the work of John Snow.
did Snow think cholera was caused by
did Snow have the handle of the pump removed
was the cholera threat defeated
What theory about cholera did Snow subscribe to
When do you ask questions and why
What sort of questions would be useful to ask
What questions help you focus
Why is asking questions important in reading
1. What was the most important tool Snow used to defeat cholera What common medical tools, e.g. a microscope, didn't he use Why
He used maps and statistics to analyse where the deaths occurred. He didn't use a microscope, for example. He didn't test the water, nor did he draw blood or examine patients.
Discuss the following questions.
The reason he did not use medical equipment such as a microscope was because, while they may be good at identifying what the germ is, locating where the germ comes from and how it spreads is not possible with the microscope. Further, understanding of germs was still developing, and so he had to innovate methods himself based on the theory he believed.
2. How has John Snow’s work affected our daily lives
Snow's work has provided readily available clean water to drink, for example, as well as an emphasis on hygiene such as the need to wash hands after they become dirty. He also showed how to prevent cholera epidemics, and transformed the way scientists study diseases, which has allowed for more protection from once common diseases such as cholera.
Below is a summary of the text with some content missing. Choose the right item from the box to complete the summary. Change the form if necessary.
prove, kill, change, famous, sick, correct, theory
An outbreak of cholera in the early nineteenth century 1. ________ millions, upsetting a young doctor called John Snow. Although he then was successful and 2. ________, Snow never lost his desire to get rid of cholera once and for all. Doctors had two 3. ________ about the disease. One was that it was spread through bad air, the other through germs in food or water.
killed
famous
theories
Snow believed the second was 4. ________ and an outbreak in London in 1854 gave him the chance to 5. ________ it. Using maps, Snow found that many of the dead had lived near the water pump in Broad Street. After showing that people who had not drunk from the pump had not got 6. ________, Snow was able to say the pump water carried cholera germs and had its use stopped. Snow’s use of maps and statistics 7. ________ how scientists study diseases. He is therefore known as the father of modern epidemiology.
prove, kill, change, famous, sick, correct, theory
correct
prove
sick
changed
Why was it John Snow, not other doctors, who defeated King Cholera Can you find the evidence from the text to support your opinion
What scientific spirits contributed to Snow’s success
He never lost his desire to destroy the cholera.
determined
ambitious
passionate
strict
strong-willed
serious
tireless
hard-working
gifted/talented
diligent
intelligent/smart
innovative/creative
confident
I. 根据提示写出所缺单词的正确形式。
1. Divided into two camps, the great debate is centred around two ____________ (相互矛盾的) theories.
2. Best known for developing the theory of relativity, Albert Einstein is a scientist of __________ (数量多的) achievements.
3. Doctors suggest we drink p__________ water because bacteria contained in untreated water can easily lead to diarrhoea.
4. Scientists have __________ (怀疑) for several years that bats are to b__________ for the Ebola virus.
contradictory
multiple
pure
suspected
blame
II. 选用方框内合适的内容并用其正确形式替换下列句子中的画线部分（每项限用一次）。
severe, link, transform, proof
1. As we all know, there is a direct connection between smoking and lung cancer.
2. Laboratory tests gave conclusive evidence that limited coffee intake presents no risk to human health.
link
proof
3. Experts claim vaccination can protect individuals from infection and the serious outcome of COVID-19 to a certain extent.
4. The invention of the microscope has changed science forever, allowing scientists to see many structures that are too small to be seen with the unaided eye.
severe, link, transform, proof
severe
transformed
III. 根据括号内的汉语提示完成下列句子（每空一词）。
1. Through scientists' tireless efforts, AIDS is expected to be cured __________ __________ __________ __________ (彻底).
2. Most physicists and astronomers __________ __________ (赞同) the Big Bang theory that explains how our universe began.
once and for all
subscribe to
3. __________ __________ (多亏) Tu Youyou's discovery of qinghaosu, malaria patients all over the world now have a greatly increased chance of survival.
4. New measures against COVID-19 led to __________ __________ __________ (大幅降低) in the number of infections last month.
Thanks to
a
substantial decrease
概要写作
根据课本P2-P3内容写一篇60词左右的内容概要。

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